1.12.2关于粒子效果生成的问题

骨粉粒子效果问题

• 我直接调用:
  
  1. net.minecraft.item.ItemDye.spawnBonemealParticles(world, pos, 15);

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• 或者复制spawnBonemealParticles()方法:
  
  1. for (int i = 0; i < 15; ++i) {
     
  2.     double x = (double) ((float)pos.getX() + rand.nextFloat());
     
  3.     double y = (double) ((float)pos.getY() + rand.nextFloat());
     
  4.     double z = (double) ((float)pos.getZ() + rand.nextFloat());
     
  5. 
     
  6.     double d0 = rand.nextGaussian() * 0.02D;
     
  7.     double d1 = rand.nextGaussian() * 0.02D;
     
  8.     double d2 = rand.nextGaussian() * 0.02D;
     
  9. 
     
  10.     world.spawnParticle(
      
  11.         EnumParticleTypes.VILLAGER_HAPPY,
      
  12.         x, y, z,
      
  13.         d0, d1, d2
      
  14.     );
      
  15. }

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• 两种方法来生成骨粉的粒子效果, 但是都没有骨粉的粒子出现.
  

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关于自定义粒子

• 我的自定义粒子贴图错误, 显示的是原版的那一大张粒子合集图
  

• 主类注册粒子贴图:
  
  1. @SubscribeEvent
     
  2. public static void onTextureStitchPre(net.minecraftforge.client.event.TextureStitchEvent.Pre event) {
     
  3.     event.getMap().registerSprite(new ResourceLocation(MODID, "particle/cherry_particle"));
     
  4. }

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• 粒子类:
  
  1. public class CherryParticle extends Particle {
     
  2. 
     
  3.     private static Random random = new Random();
     
  4.     private static double[] axis = new double[]{0.03D, 0.04D, 0.05D, 0.06D, 0.07D};
     
  5. 
     
  6.     public CherryParticle(World world, double x, double y, double z) {
     
  7.         super(world, x, y, z);
     
  8. 
     
  9.         // 获取粒子贴图
     
  10.         Texture texture = new Texture();
      
  11. 
      
  12.         // 设置粒子贴图
      
  13.         this.particleTexture = texture;
      
  14.         this.particleTextureIndexX = 1;
      
  15.         this.particleTextureIndexY = 1;
      
  16. 
      
  17.         // 设置粒子生命周期
      
  18.         this.isExpired = false;
      
  19.         this.particleAge = 0;
      
  20.         this.particleMaxAge = (20 * 10); // 粒子生命周期 / 10s
      
  21. 
      
  22.         // 粒子运动
      
  23.         this.motionX = axis[random.nextInt(axis.length)];
      
  24.         this.motionY = 0;
      
  25.         this.motionZ = axis[random.nextInt(axis.length)];
      
  26. 
      
  27.         // 粒子不可以被碰撞
      
  28.         this.canCollide = false;
      
  29.     }
      
  30. 
      
  31. //生成粒子效果方法
      
  32.     public static void spawnParticle(World world, BlockPos pos) {
      
  33.         IBlockState downBlockState = world.getBlockState(pos.down());
      
  34.         Block downBlock = downBlockState.getBlock();
      
  35. 
      
  36.         if (!downBlock.isFullCube(downBlockState) && random.nextInt(8) == 0) {
      
  37.             double x = pos.getX() + (Math.random() * 1);
      
  38.             double y = pos.getY() - 0.01;
      
  39.             double z = pos.getZ() + (Math.random() * 1);
      
  40. 
      
  41.             CherryParticle particle = new CherryParticle(world, x, y, z);
      
  42.             net.minecraft.client.Minecraft.getMinecraft().effectRenderer.addEffect(particle);
      
  43.         }
      
  44.     }
      
  45. 
      
  46. //粒子更新逻辑
      
  47.     private double fall = 0.09;
      
  48.     @Override
      
  49.     public void onUpdate() {
      
  50.         this.prevPosX = this.posX;
      
  51.         this.prevPosY = this.posY;
      
  52.         this.prevPosZ = this.posZ;
      
  53. 
      
  54.         this.motionY = -fall;
      
  55.         if (this.particleAge % 5 == 0 && fall >= 0.01)
      
  56.             /*更新下落速度*/fall -= 0.002;
      
  57. 
      
  58.         //移动
      
  59.         this.move(this.motionX, this.motionY, this.motionZ);
      
  60. 
      
  61.         expiredParticle();
      
  62.     }
      
  63. 
      
  64. //检查移除
      
  65.     public void expiredParticle() {
      
  66.         BlockPos pos = new BlockPos(this.posX, this.posY, this.posZ);
      
  67.         IBlockState posBlockState = this.world.getBlockState(pos);
      
  68.         Block posBlock = posBlockState.getBlock();
      
  69. 
      
  70.         // 粒子生命周期结束 || (当前位置方块是完整方块 && 当前位置方块不是樱花树叶)
      
  71.         if (this.particleAge++ >= this.particleMaxAge || (posBlock.isFullCube(posBlockState) && posBlock != BlockBase.CHERRY_LEAVES))
      
  72.             /*移除粒子*/this.setExpired();
      
  73.     }
      
  74. 
      
  75. //材质
      
  76.     class Texture extends TextureAtlasSprite {
      
  77.         public Texture() {
      
  78.             super("suikecherry:particle/cherry_particle");
      
  79. 
      
  80.             this.width = 3;
      
  81.             this.height = 3;
      
  82.             this.initSprite(3, 3, 0, 0, false);
      
  83.         }
      
  84.     }
      
  85. }

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• 以上实现的效果:
  

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顺便问一下怎么识别玩家是否是创造模式, 我从别人源码复制的

1. if (!player.capabilities.isCreativeMode)

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会报错:

1. 错误: capabilities  
   
2. 在 Entity 中是 private 访问控制
   
3.             if (!player.capabilities.isCreativeMode)
   
4.                        ^
   
5. 错误: 找不到符号
   
6.             if (!player.capabilities.isCreativeMode)
   
7.                                     ^
   
8.   符号:   变量 isCreativeMode
   
9.   位置: 类型为CapabilityDispatcher的变量 capabilities

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